The difficult season lags behind the changes in sunlight. Where you live — north-south, and east-west within your time zone — determines the chance you will suffer. But it is usually easy to transcend this burden of circumstances with a major tool of chronotherapy: bright light therapy.
If you find yourself plodding through the day, chronotherapy may provide the key. Learn how to adjust your circadian rhythms so they get into better sync with the demands of the outside world. Improve your sleep pattern, increase your alertness, and counteract blue mood, using new non-drug methods discovered in laboratory studies and tested in clinical trials.